I picked up
Unspoken: A Story From the Underground Railroad thinking it was pre-Civil War but it is clearly in the midst of it. It's a wordless book (a genre of which I'm an admiring fan) and the pictures are muted pencil drawings throughout. Unlike other Civil War stories, this doesn't highlight either tragedy or heroism really... it just sort of shows a simple piece of reality in some "safe houses" where a little girl finds a runaway slave and acts to secretly help the person in small ways. The Confederate soldiers come by and the family has nothing to say...
A lovely book, best shared in a bigger context of the Underground Railroad, and other more complete Civil War studies.